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目前在国外计算土壤流失量普遍应用的公式是“土壤流失通用方程”。它的表示式: A=R·K·LS·C·P A—代表土壤流失量,单位是吨/公顷或吨/平方公里。 据了解,这个公式是逐步充实完善起来的。不少科学家参预了这个方程的建立、提高等方面的工作。早在1940年,水土保持学者辛格(Zingg)就提出了综合表达土壤流失因素的设想和简单的公式,但只考虑土壤流失过程中地面坡度与坡长的因素。1941—1946年,水土保持学者史密斯(Smith)发展了辛格的公式,对植物保护土壤的作用,给予了足够的重视。1947年布劳因(Browing)仔细研究了土壤流失过程中的坡度大
The commonly used formula for calculating soil loss abroad is the General Equation of Soil Loss. Its representation: A = R · K · LS · C · P A- represents the amount of soil loss in tons / ha or tons / km 2. It is understood that this formula is gradually enriched and improved. Many scientists participated in the establishment of the equation, improve the work and so on. As early as 1940, Zingg, a soil and water conservation scholar, put forward the idea and simple formula for synthetically expressing the factor of soil erosion, but only considered the factor of slope and slope length during soil erosion. From 1941 to 1946, Soil and Water Conservation scholar Smith developed Singh’s formula and paid enough attention to the role of plant in protecting soil. In 1947, Browing carefully studied the large slope of soil erosion